As
one
of
the
most
outstanding
allotropes
carbon
assembled
with
a
cylindrical
nanostructure,
nanotubes
(CNTs)
have
attracted
extensive
attention
in
areas
material
science
and
engineering
due
to
their
unique
structural
characteristics
physicochemical
properties.
Very
recently,
versatile
hierarchical
CNT‐based
photocatalysts
are
considerable
interest
current
research
applications
ranging
from
fuel
generation
environmental
purification.
Therefore,
it
is
necessary
summarize
provide
essential
references
for
continuous
study.
In
this
review,
different
design
strategies
flexible
functionalizations
prototype
construction
described
typical
research,
especially
structure‐related
or
electronic‐effected
mechanism
photocatalytic
reaction
pollutants
degradation,
water
splitting,
CO
2
reduction
overviewed.
Finally,
various
aspects
discussed
future
developments
commercial
applications.
ACS Applied Materials & Interfaces,
Год журнала:
2023,
Номер
15(16), С. 20027 - 20039
Опубликована: Апрель 12, 2023
Photocatalytic
water
cracking
hydrogen
(H2)
production
is
a
promising
clean
energy
technology.
Therefore,
ternary
CdS@Nb2O5/Nb2CTx
(MXene)
heterojunction
with
hierarchical
structure
was
designed
to
promote
photocatalytic
H2
evolution.
When
Na2S/Na2SO3
and
lactic
acid
were
used
as
sacrificial
agents,
the
evolution
reaction
(HER)
rates
of
optimized
photocatalyst
1501.7
2715.8
μmol
g-1
h-1,
12.4%
26.1%
apparent
quantum
efficiencies
(AQE)
at
420
nm,
respectively.
Its
HER
performance
10.9-fold
higher
than
that
pure
CdS
remained
87%
activity
after
five
rounds
cycle
tests.
Such
an
enhancement
stems
from
excellent
light
absorption
properties,
tight
interfacial
contact,
fast
charge
transfer
channel,
sufficient
active
sites.
Mechanism
analysis
demonstrates
S-scheme
Schottky
junction
synchronous
regulation
boost
for
production.
This
work
creates
possibilities
manufacturing
Nb-based
MXene
photocatalysts
converting
solar
other
applications.
ACS Applied Energy Materials,
Год журнала:
2023,
Номер
6(3), С. 2081 - 2096
Опубликована: Янв. 30, 2023
Interface
engineering
is
a
vital
concern
to
achieve
high
efficiency
in
heterojunction
photocatalysts.
The
judicious
design
of
efficient
interfacial
electron
mediators
accelerate
the
charge
transfer
Z-scheme
heterojunctions
with
contact
for
enhancing
performance
photocatalysts
essential
and
has
been
considered
an
immense
challenge.
Inspired
by
nature,
multivariate
all-solid-state
TiO2@Ti3C2/MIS
composites
were
fabricated
via
simple
two-step
oxidation
strategy
highly
promoted
multiple
photocatalytic
applications.
morphological
analysis
demonstrated
that
MgIn2S4
(MIS)
microflowers
accumulated
on
surface
Ti3C2@TiO2
nanosheets,
providing
dense
active
sites
MIS
HRTEM
XPS
characterization
distinctly
clarified
close
interaction
between
Ti3C2
TiO2.
optimized
TiO2@Ti3C2/MIS-15
exhibited
highest
ciprofloxacin
degradation
(92%)
hydrogen
evolution
(520.3
μmol
h–1)
as
compared
those
their
pristine
counterparts.
From
mechanistic
insights,
migration
pathway
was
observed
TiO2,
where
nanosheets
served
bridge
constructing
thus
extended
lifetime
carriers
photoinduced
significant
participation
•O2–
•OH
radicals
during
CIP
verified
species
trapping
experiments,
EPR,
liquid
chromatography–mass
spectrometry
(LC-MS)
analysis.
current
study
provides
mediator-based
interfaces
improving
catalytic
activity
MXene-derived
As
one
of
the
most
outstanding
allotropes
carbon
assembled
with
a
cylindrical
nanostructure,
nanotubes
(CNTs)
have
attracted
extensive
attention
in
areas
material
science
and
engineering
due
to
their
unique
structural
characteristics
physicochemical
properties.
Very
recently,
versatile
hierarchical
CNT‐based
photocatalysts
are
considerable
interest
current
research
applications
ranging
from
fuel
generation
environmental
purification.
Therefore,
it
is
necessary
summarize
provide
essential
references
for
continuous
study.
In
this
review,
different
design
strategies
flexible
functionalizations
prototype
construction
described
typical
research,
especially
structure‐related
or
electronic‐effected
mechanism
photocatalytic
reaction
pollutants
degradation,
water
splitting,
CO
2
reduction
overviewed.
Finally,
various
aspects
discussed
future
developments
commercial
applications.
